government about tamerlan sang there was a possibility he was being radicalized. the fbi interviewed him and his family concluded there was nothing there and closed the case. he then made six month trip to russia in 2012 but his exact whereabouts and activities are unclear. after that trip, he posted radical islamic videos on his view to. as you can see on this video. could the fbi have done more to prevent what happened at the boston marathon way back in 2010-- 2011 and 12. >> we're taking a live look at the funeral of one of the three was killed in the boston marathon attack. crystal campbell was a 29 year-old restaurant worker. later tonight, a memorial service will be held at boston university for 22 year-old grad student lu lingzi, another victim. >> she was also killed in the bombing. light coming to us from boston. >> more on first baseman brandon moss and right fielder joshed rediuck hope to meet with 11 year-old a aron hern, the martinez will injured in the boston marathon bombings at boston's children's hospital. the a's fall to boston last night was sta